Question

please answer the below image

Answer 1

Explanation:

f = 850 Hz

v = 340 m/s

\lambda= \frac{v}{f} = \frac{340}{850} =0.4mλ=

f

v

=

850

340

=0.4m

The distance between crest and trough is half of the wavelength. thus that will be 0.4/2 = 0.2m.

Period of vibration = \frac{1}{f} = \frac{1}{850} = 0.00118s

f

1

=

850

1

=0.00118s

Answer 2

Already answered lol...